Ice-cream freezer



' A. T. LIGHT.

ICE' CREAM FREEZER. APPLICATION FILED JULY 25,1919.

1,380,131 g39 Patented June 7,V 192i.

`747`7% Yf /9 f@ i ff INVENTOR .//Wf'Zj/Z unirse stares' WENT @FNSEA ALBERT T. LIGHT, or NEW YORK, iv. Y.

'ron-CREAM FREEZER. .y

To all whom t may con-cern.'

Be it known that L-I'XLBERT T. LIGHT, a

subject of the King ofV Great Brita-in and Ireland, residing at New l ork, in the county' Special objects of the invention are to ac,

curately support and center the beater mechanism and to enable observation and inspection of lsaid beater mechanism while lthe same is in operation.

Another object of theV inventionisto' so construct the parts that the gear box and.

the freezing vessel may be readily separated without disturbing the gearing.

In the accomplishment of the foregoing objects haveV constructed the freezing ves sel with a removable head giving access to the interior of the vessel and have supported the outer end of the beater on a bearing carried by a spider-like structure which is entirely independent of the cover and which will support the beater in position While the cover is raised and the interior of the vessel is therefore open for inspection.

Also the gear box and the freezing vessel are preferably constructed as separate niechanical units which may be readily assembled or separated without taking ldown the gearing.

Other features of the invention and details of construction will appear as Vthe specification proceeds.

In the accompanying drawing have illustrated but one embodiment ofmy invention, but contemplate that this structure may be modified in various respects without departure from the true spirit and scope of the invention.

Figure 1 of said drawing is a longitudinal sectional view of the machine.

Fig. 2 is an end sectional view on substantially the plane of line 2 2 of Fig. 1.

The freezing vessel or can as it is some-l times calledV is of generally cylindrical shape and provided with the usual refrigerating and heat-insulating means. This vessel is designated 5 and is shown provided with a closed bottom or inner end 6 and an open outer end which may be closed by the cover 7.

Specification of Letters Patentf .Patented Jn 5 Application fried July 25, ieia Yserial No. 313g4o0. 1

8 designates the gear boiX which Vmay be in general of the usual construction, but which is preferably provided as shown, with aA relatively fixed or rigid supporting end walln 9 having a projecting 4hubv 10.l Journaled in this hub is a tubularv shaft v11 and journaled withinthis tubular shaft is an inner shaft 12, said shafts being driven in reversei ldirections lby the gears 18 andlh-which are meshed with the main drive gear 15. A lock bushing 16 seated in the hub 10 may provide the actual bearing surface 'for the tubular shaft and this bushing may carry a suitable` stuffing boXrlT at leakage. Y Y

The outerv or exposed ends of thereversely rotating Ashafts are provided Ywith coupling its outer end to prevent means by which the sections' of thev beaterv are engaged therewith, said means compris ing -in the present disclosure an-eXternally screw-threaded extension 18 on the'endof the tubular shaft to be engaged by an internally screw-'threaded hub v19 on the scraper-,20 and an angular socket 21 in the end of the inner shaft 12 to be engaged by an angular pin 22 onvthe inner end of the beater or paddle member 23. The tubular shaft preferably has a flange'24f forming a shoulder at the back of the screw-.threaded extension and providing al stop against which the hub 19 may abut. This flange it will. beV noted is of somewhat less diameter than the bearing hub 10.

The freezing vessel is constructed with an opening 25 in the bottom thereof to fit closely over the projecting hub of the gear boX and after being thus engaged over the hub the vessel is secured fast to the supporting wall 9 as by means of the bolts 26. This construction, it will be evident, permits the gear box and the freezing vessel to be treated as separate units, said units being assembled by simplyengaging the freezing vessel over the hub of the gear box and securing the same in such position by the bolts described. It will be noted that the projecting iiange A24; of the tubular shaft does notinterfere with the assemblage or separation of these units inasmuch as it is of no greater diameter than the hubY 10. Y

The parts thus far described provide an effective support'for the inner ends of the reversely rotating beater sections. The outer ends of said beater elements are supported on a spider-like element 27 removably seated in the open end of the vessel and held der.

against rotation therein as by suitable keying means 28, said spider carrying at its center a bearing 29 on which the outer end portions of the beater members are rotatably engaged. This spider it will be noted is mounted in the` vessel inside the cover and supports the beater wholly" independently of the cover, thus permitting removal of the Cover and the observation of the working parts while the machine is in operation. This isY particularly desirable when setting up the parts, to observe `the lit ofthe scraper blades with respect to the walls of the cylin- This construction also avoids the saoging` of the outer end of the beater whici frequently occurs i-n machines constructed prior to my invention and wherein the beater is supported` on a pin carried by the `removable cover.

lI claim :f-

.1.,An' ice cream `freezer comprising a freezing vessel provided at one end with a y removable head,` a beater supported on a bearingat the opposite end of such vessel, driving gearingconnected with said supported end of the beater, "and a bearing for the opposite outerend of the beater nonn rotatably mounted in the vessel inside the removable head and supporting the beater independently of, said head, whereby `said beater maybe operated witlithe head removed and while thevessel is open.

2. An ice cream freezer, comprisinga freezing vessel provided at one endwith a removable head, a beater supported by a bearing in the opposite end of said vessel, driving gearing connected with said supported end of the beater, and a bearing for the opposite outer end of the beater non-rotatably and vremovably held in the vessel insidethe re-p movable head and supporting the beater invessel.

4. An ice cream freezer, ycomprising a freezing `vessel provided `with la removable head at one end and having abearing in its opposite end, a beater having reversely rotating nieinbersvjournaled atvone end in said bearing, a spider removablyv and non-rotatably engaged in the open end of the vessel inside the removable head and provided With a bearing for supporting the reversely rotating sectionsV of the beater, and gearing Vfor drivingvthe reversely lrotating sections of tliebeater. A y v vIn testimony whereof I aHiX my signature.

v ALBERT LIGHT. 

